IMPORTED / COMPARISONS

BOLT.NEW VS LOVABLE: SECURITY COMPARISON

Bolt.new and Lovable both generate full-stack apps from prompts, but their security profiles differ significantly. We compared database security, authentication, code generation quality, and deployment risks side by side.

The bottom line

Both Bolt.new and Lovable generate functional apps quickly but with security gaps. Lovable has a documented track record of database breaches (170+ in Feb 2026). Bolt tends to produce cleaner code but still ships with permissive defaults. Neither tool generates production-ready security.

Database Security

Feature Bolt.new Lovable Verdict
Default database setup Supabase integration with basic RLS templates Supabase with auto-generated but often permissive RLS Both leave RLS gaps by default
Data exposure risk Moderate — some apps ship with open database access High — 170+ breached databases found in Feb 2026 Lovable has documented breaches
Connection string handling Environment variables used but sometimes hardcoded Environment variables used but sometimes exposed in client Both need review
Backup and recovery Depends on Supabase plan Depends on Supabase plan Tie — both rely on Supabase

Authentication & Authorization

Feature Bolt.new Lovable Verdict
Auth implementation Basic auth scaffolding, often incomplete More complete auth flows but with bypass risks Lovable more complete but riskier
Session management Standard JWT via Supabase Standard JWT via Supabase Tie — both use Supabase auth
Role-based access Rarely generated by default Sometimes generated but misconfigured Both need manual RBAC setup
API route protection Edge functions often unprotected API routes sometimes missing auth checks Both leave API gaps

Code Generation Quality

Feature Bolt.new Lovable Verdict
Secret handling Sometimes exposes keys in frontend code Sometimes exposes Supabase anon key insecurely Both leak secrets
XSS prevention React helps but dangerouslySetInnerHTML appears React helps but similar XSS risks Tie — React mitigates most
Dependency security Uses npm packages, no automatic auditing Uses npm packages, no automatic auditing Tie — both skip dep audits
Generated code readability More modular, easier to review Can be verbose, harder to audit Bolt slightly easier to review

Deployment & Infrastructure

Feature Bolt.new Lovable Verdict
Default hosting Netlify or Vercel deployment Lovable hosting or Vercel/Netlify Similar options
HTTPS Automatic via hosting platform Automatic via hosting platform Tie
Environment variable management Platform-level env vars Platform-level env vars with some client exposure Bolt slightly safer defaults
Security headers Minimal by default Minimal by default Both need manual hardening

Security risks unique to each

Bolt.new-specific risks

  • Netlify Functions exposure: Serverless functions may be deployed without authentication, creating open API endpoints.
  • Template reuse: Popular templates get widely deployed, meaning a single vulnerability pattern affects many apps.
  • Limited security documentation: Less community discussion about Bolt security compared to Lovable.

Lovable-specific risks

  • Documented mass breaches: Reddit researchers found 170+ Lovable apps with fully exposed databases in February 2026.
  • Supabase misconfiguration: Auto-generated Supabase setup frequently lacks proper RLS policies.
  • 18,000+ users exposed: A single showcase app was found with 16 vulnerabilities exposing 18,697 user records.

How to secure code from either builder

  1. Scan any Bolt.new or Lovable app with VibeEval before deploying — both generate vulnerable code by default
  2. Always verify Supabase RLS policies manually — AI-generated rules are frequently permissive or missing
  3. Never trust auto-generated auth flows — test login bypass, role escalation, and session handling
  4. Remove hardcoded API keys and move all secrets to environment variables before going live
  5. Add security headers (CSP, HSTS, X-Frame-Options) manually — neither tool generates these
/ NEXT STEP

SCAN YOUR APP

14-day trial. No card. Results in under 60 seconds.

START FREE SCAN →